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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-42-224-4
Xtreme Energy 274H Hydraulic Flat Tappet Camshaft Only Lift .520"/.523" Duration 274°/286° RPM Range 1800-6000
$30995
Ships on Sep 15, 2026
Lowest Price GuaranteeOldsmobile 260-455 c.i. 8 cyl. 1967-1990
- Xtreme Energy 274H Hydraulic Flat Tappet Camshaft Only
Lift .520"/.523"
Duration 274°/286°
RPM Range 1800-6000
Hydraulic-Hi Performance street, very strong mid-range, headers and mild stall.
Olds; Oldsmobile; Cutlass; Cutlass Supreme; 98; Calais; Ciera; Custom Cruiser; Starfire; Firenza; 88; Rocket; Rocket 88; Vista Cruiser; Delta 88; 260; 442; 307; 350; 403; 400; 425; 455
High performance street, very strong mid-range. Needs headers and 2200+ stall.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeCamshaft
BrandCOMP CAMS
Package Height2.9
Package Width2.9
Package Length24.2
Weight10.35 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)236
Cam StyleHydraulic flat tappet
Grind NumberOL XE274H-10
Exh. Duration Advertised (Deg)286
Engine Make/SizeOlds 260-455
Intake Valve Lift With Factory Rocker Arm Ratio (I0.52
Int. Duration @ .050 In. (Deg)230
Basic Operating Rpm Range1,800-6,000
Intake Valve Lift0.52 in (13.208 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)274
Lobe Separation (Deg)110
Rpm Range1800-6000
Advertised Duration274 int./286 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.523
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.520 int./0.523 exh.
QuantitySold individually
Exhaust Valve Lift0.523 in (13.284 mm)
Advertised Intake Duration274
Intake Duration At 050 Inch Lift230
Exhaust Duration At 050 Inch Lift236
Advertised Exhaust Duration286
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift230 int./236 exh.
Valve Springs RequiredYes
Vendor Part Number42-224-4
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
